Fractional catalytic pyrolysis of biomass
AssigneeVirginia Tech Intellectual Properties, Inc.
InventorFoster A. Agblevor
Life of this patent
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Abstract
Methods for fractional catalytic pyrolysis which allow for conversion of biomass into a slate of desired products without the need for post-pyrolysis separation are described. The methods involve use of a fluid catalytic bed which is maintained at a suitable pyrolysis temperature. Biomass is added to the catalytic bed, preferably while entrained in a non-reactive gas such as nitrogen, causing the biomass to become pyrolyzed and forming the desired products in vapor and gas forms, allowing the desired products to be easily separated.
Claims24
A fractional catalytic pyrolysis process for converting biomass into a product slate without the need for post-pyrolysis separation comprising:
- providing a catalyst bed in a fluid state, the catalyst being maintained at a temperature suitable for pyrolysis;
- providing a flow of a non-reactive fluid into the catalyst bed;
- entraining a biomass in the flow of non-reactive fluid, so that the biomass is delivered to the catalyst bed and pyrolyzed;
- and
- collecting the gases and vapors that result from the pyrolyzed biomass, wherein the gases and vapors are the resultant product slate, wherein the resultant product slate contains phenolics with insubstantial amounts of carbohydrates.
A fractional catalytic pyrolysis process for converting biomass into a product slate without the need for post-pyrolysis separation comprising:
- providing a catalyst bed in a fluid state, the catalyst being maintained at a temperature suitable for pyrolysis;
- providing a flow of a non-reactive fluid into the catalyst bed;
- entraining a biomass in the flow of non-reactive fluid, so that the biomass is delivered to the catalyst bed and pyrolyzed;
- and
- collecting the gases and vapors that result from the pyrolyzed biomass using one or more condensers, wherein the gases and vapors are the resultant product slate, wherein the resultant product slate contains phenolics with insubstantial amounts of carbohydrates.
Dependencies are inferred from the claim text.